using System;

class NumbersWithinCircle
{
    static void Main()
    {
		Console.WriteLine("Input x:");
		int x = int.Parse(Console.ReadLine());
		Console.WriteLine("Input y:");
		int y = int.Parse(Console.ReadLine());
		Console.WriteLine("Check if given points area within Circle K(0,5)");
		int radius = 5;
		bool isWithin = (x*x)+(y*y)<=(radius*radius);
		if(isWithin==true)
		{
			Console.WriteLine("X={0} and Y={1} is INSIDE of K;",x,y);
		}
		else
		{
			Console.WriteLine("X={0} and Y={1} is OUTSIDE of K;",x,y);
		}
    }
}
